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WorksheetsFill-in Punnett Square Practice
Total questions: 16
Worksheet time: 16mins
What are the possible phenotype(s) of the offspring? (A-Brown hair; a-blond hair)
50 % Brown Hair and 50% Blond Hair
25 % Brown Hair and 75% Blond Hair
75 % Brown Hair and 25% Blond Hair
0% Brown Hair and 100% Blond Hair
In pea plants: T=tall t=short
What ratio of the offspring could be short?
0 in 4
1 in 4
2 in 4
4 in 4
In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?
25%
0%
100%
50%
What is the probability of heterozygous offspring?
0%
100%
50%
25%
What are the possible genotypes for this cross?
TT = 25% Tt= 50% tt=25%
all tall
TT= 75% tt = 25%
Tt = 100%
What genotype would go in box 4?
BB
Bb
bb
What are the possible genotypes of the offspring? (A-Brown hair; a-blond hair)
AA, Aa, aa
AA only
Aa only
aa only
What genotype would go in box 1?
BB
Bb
bb
What are the possible percentage of genotypes for the offspring? (A-Brown hair; a-blond hair)
100% AA
75% AA; 25% aa
25% AA; 50% Aa; 25% aa
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
What is the possibility of this offspring having the dominant trait?
50%
75%
25%
0%
If T=tall and t=short
What is the ratio for short phenotype in this cross?
0:4
1:4
2:4
3:4
